CD74HC74EE4

Overview

The CD74HC74EE4 is a high-speed CMOS logic dual D-type flip-flop with independent clear and preset functions, manufactured by Texas Instruments. It features a 14-pin plastic dual in-line package (PDIP) designed for through-hole mounting. The device operates within a supply voltage range of 2 V to 6 V and supports an extended industrial temperature range from -55 °C to +125 °C. Key electrical characteristics include a maximum static power consumption of 8 µA and output drive capabilities of ±5.2 mA. Propagation delays are specified at 32 ns for the clock-to-Q transition and 20 ns for the clear or preset inputs.

Feature Summary

• Provides two independent D-type flip-flops with dedicated asynchronous clear and preset controls.
• Ensures reliable data storage and transfer via positive-edge triggering on the clock input.
• Maintains low static power consumption suitable for battery-powered applications.

Applications

• Data storage registers in digital systems
• Shift register configurations
• Timing delay circuits

Procurement Notes

Verify that the ordering suffix EE4 corresponds to the specific PDIP-14 package variant required for your assembly process. Confirm RoHS compliance status as indicated in official documentation. Ensure the selected component meets the necessary lead time requirements for production schedules. Cross-reference the manufacturer's part number against authorized distributor catalogs to guarantee authenticity and traceability before finalizing procurement orders.

Selection Notes

Select this component when a dual D-flip-flop solution with separate control lines is required. Consider the HC series for compatibility with standard 5 V logic levels while maintaining low power usage. Evaluate the PDIP-14 package constraints regarding board space and thermal dissipation. Compare propagation delays against system timing budgets to ensure signal integrity across operating temperatures.

Part Context

This component belongs to the Texas Instruments CD74HCxx family of high-speed CMOS logic devices. It shares functional similarities with other D-type flip-flops in the lineup but offers specific pinout and control configurations. The EE4 suffix denotes a specific packaging and environmental compliance variant within the broader product portfolio.

Replacement Considerations

Public confirmed substitute part numbers: CD74HC74N, CD74HC74DR, CD74HC74M96.